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Overview
| Topology | Flyback Converter |
| Input voltage | 18-36 V |
| Switching frequency | 250 kHz |
| Output 1 | 5 V / 4 A |
Description
The LM5155EVM-FLY evaluation module showcases the features and performance of the LM5155 as wide input non-synchronous flyback controller. The standard configuration is designed to provide a regulate output of 5V at 4A from an input of 18V to 36V, switching at 250 kHz. This evaluation module is designed for ease of configuration, enabling the user to evaluate many different applications on the same module. The PCB is two layers with components populated only on one side. Functionality includes programmable slope compensation, adjustable soft-start, programmable cycle-by-cycle current limit, hiccup mode short-circuit protection, and programmable line under voltage lockout.
Features
- Tightly regulated output voltage of 5 V
- High conversion efficiency of > 86% at full load.
- Hiccup mode Short Circuit Protection
- User adjustable secondary side soft-start time
- 10V Auxiliary winding to power VCC pin
- 250kHz Switching frequency
- 2 Layer PCB with components populated on 1 side
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | VIN | VOut1(V) | IOut1(A) | Vaux(V) | L(µH) | Qmin. | n | ISAT(A) | LS(nH) | VT(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 25 V(DC), 10 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 25 V(DC) | Capacitance10 µF | Capacitance±10% | Rated Voltage25 V (DC) | Size1210 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor5 % | Insulation Resistance0.01 GΩ | Ceramic TypeX7R Class II | Length3.2 mm | Width2.5 mm | Height2 mm | Pad Dimension0.3 mm | Packaging7" Tape & Reel | – | – | – | – | – | Q-Factor [1]600 | – | – | – | – | |||||
 | WE-FLYTI Flyback Transformers, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-FLYTI Flyback Transformers | – | – | – | SizeEPQ13 | Operating Temperature -40 °C up to +125 °C | – | – | – | Length13.97 mm | Width18.25 mm | Height14.5 mm | – | – | Input Voltage 18 - 36 V (DC) | Output Voltage 15 V | Output Current 14 A | Auxiliary Voltage10 V | Inductance21 µH | – | Turns Ratio2:1:2 | Saturation Current6.2 A | Leakage Inductance300 nH | Insulation Test Voltage1500 V (AC) |